Morphological and immunological characteristics of the bovine temporal lymph node and hemal node.
Anatomical dissection of the temporal regions of 62 cattle demonstrated that lymph nodes and hemal nodes are present in 89% of the animals (bilaterally in 65% and unilaterally in 24% of the cases). Lymph nodes accounted for 60% and hemal nodes for 40% of all examined nodes. They are nearly always round with diameters ranging from 1 to 9mm. Injections of India ink showed that their drainage area consists of the forehead, the upper eyelid, the base of the horn and the temporal muscle. Immunohistochemistry and flow cytometry revealed that the distribution and percentages of the different cell populations in the lymph nodes and hemal nodes are similar to other cranial lymph nodes. Based on its anatomical location the name temporal lymph node (lymphonodus temporalis) is proposed.
Casteleyn
Christophe R
CR
Department of Morphology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820 Merelbeke, Belgium. Christophe.Casteleyn@UGent.be
Breugelmans
Sofie
S
Simoens
Paul
P
Van den Broeck
Wim
W
D000818:Animals; D002417:Cattle / Q000033:anatomy & histology*; D004210:Dissection / Q000662:veterinary; D005434:Flow Cytometry / Q000662:veterinary; D007150:Immunohistochemistry / Q000662:veterinary; D008221:Lymphoid Tissue / Q000033:anatomy & histology*